When you go to a music festival or other event and they have grossly under-estimated attendance and massively skimped on port-o-potties. You enter for a #2. There is already a cone of scheiss adorning the seat, but you feel confident you can cast the last stone. With knees unbent and face to the door, you ice the cake with success.

Note: only one person can claim having iced the cake per port-o-potty; extra bragging rights if you wipe with a wife beater afterwords and swirl that around your prize to fashion it a makeshift crown of glory

When Mike finished icing the cake at Festeroo, he erupted from the port-o-potty exclaiming: "it's done, no more!"

Jizzing all over a girl's chest in an attempt to create a design similar to that which is found on a cake.

" I fucking jizzed all over Ksenia's chest and I made it look like Batman! She was screaming "Ice my cake, Ice my cake" so much I just had to do it. Plus, she likes it when we do it Batman style! Thats how we're icing the cake!"